When you use someone as a referee, they do not have to be informed beforehand. They can find out when your recruiter contacts them.

Name: When you use someone as a referee, they do not have to be informed beforehand. They can find out when your recruiter contacts them.
Brand: Quizplus
Rating: 4.9 (32 reviews)

Question

Quizplus · Accepted Answer

It is considered common courtesy and professional to ask permission before using someone as a reference. It also gives them time to prepare and think about what they would like to say about you to the recruiter.

When You Use Someone as a Referee, They Do Not